Recent content by m-a-r-i-n

  1. m-a-r-i-n

    LCD Inverter

    Where i can find shcematic for LCD Inverter of IBM thinkpad r50e...or schematic of inputs for that inverter...thanks  :D
  2. m-a-r-i-n

    Pioneer gm-x802

    Thanks a lot!  ;D ;D
  3. m-a-r-i-n

    Pioneer gm-x802

    Need help to find schematic for this amp...thx ;D
  4. m-a-r-i-n

    PROFILE PA2120

    I know that is this low cost amp. I didn't buy it, some person give to me to repair, and i do it,but only half, I didn't repair 2.ch because is very damaged.  :) There is picture  :)
  5. m-a-r-i-n

    Cross

    The basic circuit is sample and hold circuits,the simple sample and hold circuit is this:
  6. m-a-r-i-n

    Cross

    Well this is how i create the circuit in blocks....comparator compare two sin wave voltage, when output is 0, the comparator activate digital circuit to activate pump capacitor on the level of voltage from one voltage sources. Then the output is equal cross voltage....this is short explanation
  7. m-a-r-i-n

    PROFILE PA2120

    Yes it is the same amplifier, a lot thanks on help!  ;D
  8. m-a-r-i-n

    PROFILE PA2120

    Yes it's great,i have been search on manufacture website but i can't find this product...i was repair the dc-dc circuit but i cannot repair one ch because the output is burn out, board is damaged and i need schematic  for create new outputs. Thanks to help ;D
  9. m-a-r-i-n

    Cross

    Tanks to sugestion...there is final circuit:
  10. m-a-r-i-n

    PROFILE PA2120

    Thanks anyway, i have been repair amplifier without schematic.
  11. m-a-r-i-n

    Cross

    Phase is variable,amplitude is constant. Circuit need detect cross two sine wave and show that value of voltage.
  12. m-a-r-i-n

    Cross

    I need help to solve this problem, i need create circuit to detect cross 2 sine wave voltage. Any sugestion is welcome!
  13. m-a-r-i-n

    PROFILE PA2120

    That is 2x120w mosfet car amplifier. Web page of manufactor is http:// www.profileusa.com
  14. m-a-r-i-n

    PROFILE PA2120

    Where i can find schematic for this amplifier?  ??? ??? thx p.s. audioguru please help  :)
  15. m-a-r-i-n

    Frequency to voltage

    >It appears that you operate at low frequencies? yes, the range of frequencies is 30-100Hz
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